Coins are a currency that permits you to buy a lot of things in the Minigames.
There are lot of ways to get coins. The most common of course is to play games. However this is not the only one that you have. Indeed, you can get coins by doing missions and contracts. These said things can be found by clicking on a NPC which is located at the back left of minigames lobbies. If you succeed at doing these missions and contracts, you will be given rewards which contain, for most of them coins. When opening brain washers, there is a chance that you get something that you already have, if this happens, instead of being given twice the same thing, you will be given coins depending on the rarity of the thing you were supposed to get. Another way to get coins is to buy boosters on our store. These boosters, when activated will permit you to receive coins (and experience) whenever someone performs the command /tip. To end with, the most efficient way to get coins is to get Clan rewards. Each end of clan season you will be given rewards depending on your clan division. The higher division you get, the more coins you will receive! Find more information about Clans in the dedicated section.
One common thing among the minigames that you can buy is talents. After have bought a talent you can also upgrade it until level VIII. The coins you will have to spend in these upgrade will increase significantly so make sure to play a lot to get enough coins! Another common thing is the ability to upgrade your chances of getting a brain after a kill in Skywars and a final kill in Bedwars. You can also upgrade the maximum amount of brains collectable in each gamemode. Are you missing brains? No worries, with your precious coins, you can trade them to get brains in all the Minigames. To end with, you can buy kits in TheBridge and upgrade kits in Skywars with coins.
NOTE: You may also find answers to your questions on our forums.